Operating systems

Memo is a simple, flexible, Unix-style note taking program. It stores everything as plain text. You can use the power of Unix command line tools to modify the data. Memo is written Unix in mind so it's possible to use it with scripting, and the possibilities are endless.

Memonaut is a notebook application with brainstorming features. It is inspired by and aims to be a replacement for FreeMind and Google Notebook. Use it for meeting minutes, TODO lists, classroom notes, study lists, quizzes, etc. It allows you to move, indent, and structure your notes easily. It runs in a Web browser and can be run offline. It supports multi-level notes for threaded discussions. You can create new notebooks and save them. It has full keyboard support.

CiWiki is a lightweight and easy-to-use personal wiki. It is a fork of DidiWiki with support for restoring previous pages, playing videos from Youtube, Dailymotion, Vimeo, and Veoh, and changing text and highlight colors. Login and page permissions protect the wiki.